But there is such a thing as observation for the pure love of it, which is used neither to improve the breed of chickens or tomatoes, nor to make effective and salable copy, nor even to generate and sustain theories about the organization of the cosmos. There is a pure, inexhaustible delight in just living with the insects and the birds, in merging one’s own existence, one’s own soul in the mysterious abundance and ecstasy of the universal life, without thought of any ulterior object to be achieved in any way whatsoever. White of Selborne felt nature in this fashion. So did Richard Jefferies. So did the French naturalist and observer, Fabre. I know few works that have more of the charm of personal delight than Bates’s ‘Naturalist on the Amazons,’ a book which I have read and re-read and shall read again. Bates was interested in the Darwinian theories and worked at them. But his passion for the forest life was quite independent of any theories and it is expressed with an engaging, absolute simplicity, without the slightest pretence at literary ornament or effect.
Our supreme American example of this life in nature, and perhaps the supreme example anywhere, is Henry Thoreau. Thoreau had his speculations, and some persons relish them. But it seems as if no other human being had ever left the record of such complete self-abnegation in the external world as Thoreau’s. His soul not only turns to that of the birds and flowers, it is that of the birds and flowers, and he is never, never making observations to serve a purpose. He is simply existing in the universal existence for the joy of it: ‘I have given myself up to nature; I have lived so many springs and summers and autumns and winters as if I had nothing else to do but live them, and imbibe whatever nutriment they had for me; I have spent a couple of years, for instance, with the flowers chiefly, having none other so binding engagement as to observe when they opened; I could have afforded to spend a whole fall observing the changing tints of the foliage. Ah, how I have thriven on solitude and poverty!’[6]
II
Of the numerous records of simple natural observation and experience few are more charming than Darwin’s ‘Journal of the Voyage of the Beagle,’ in which he notes what he saw and heard by land and sea during those years of adventure in the southern hemisphere. All through this book, as indeed in all his books, it is evident that the instinct and habit of observing were inborn and constant, and all those who write about Darwin make this instinct at least the foundation of his scientific eminence.
THE BEAGLE LAID ASHORE FOR REPAIRS AT RIVER SANTA CRUZ, PATAGONIA
Asa Gray, who had given his life to botany, writes: ‘What a skill and genius you have for these researches! Even for the structure of the flower of the Ophyrideæ I have to-night learned more than I ever knew before.’[7] Professor Osborn says, more generally: ‘Rare as were his reasoning powers, his powers of observation were of a still more distinct order. He persistently and doggedly followed every clue; he noticed little things which escaped others; he always noted exceptions and at once jotted down facts opposed to his theories.’[8] And the editors of Darwin’s letters put the whole matter with concise effectiveness in speaking of ‘that supreme power of seeing and thinking what the rest of the world had overlooked, which was one of his most striking characteristics.’[9]
Darwin’s own comments on observation are frequent and most interesting. Little inclined as he was to self-praise, in the charming autobiographical sketch which begins the ‘Life,’ he frankly states his merits in this regard: ‘I think that I am superior to the common run of men in noticing things which easily escape attention, and in observing them carefully. My industry has been nearly as great as it could have been in the observation and collection of facts.’[10] Exact, systematic, patient study of what is actually seen seems to him the basis of all great scientific work, and he repeatedly emphasizes the importance of it. ‘It is well to remember that Naturalists value observations far more than reasoning.’[11] Again, ‘I have come not to care at all for general beliefs without the special facts. I have suffered too often from this.’[12] And observation is not only a duty, it is a delight. The arrangement of facts, the deduction of theories from them, thought, reasoning, argument, these are labor and pain. But to watch the insects and the flowers, by long and careful attention to make them yield all their secrets, this is no labor, but an exquisite diversion, which never fails: ‘A naturalist’s life would be a happy one if he had only to observe, and never to write.’[13]
It is evident, further, that Darwin’s observation was by no means confined to natural science, but was quick, acute, and constant in all the different phases and interests of life. Naturally his books deal with little besides his scientific work, but the record of the Beagle shows interest and appreciation of many things outside of this work altogether. An eye so carefully trained could not fail to distinguish and perceive all sorts of minute points that others would pass over. His readiness to note other things besides those he was looking for shows in the piquant comment on wide experimenting: ‘It may turn out a mare’s nest, but I have often incidentally observed curious facts when making what I call “a fool’s experiment.”’[14]
It is especially curious to note Darwin’s observation of himself. To be sure, he disclaims any philosophical study in this regard: ‘I have never tried looking into my own mind.’[15] Nevertheless, whether he tried or not, he was curiously alive to what went on there, and he records what he finds with the singular candor which appears in his treatment of his own affairs as well as of others. The very hesitation with which he speaks of self-analysis increases the value of his results: ‘If I can analyze my own feelings (a very doubtful process).’[16] And when he does make a statement, it is all the more reliable and all the more far-reaching from the moderation and reserve with which it is advanced.